<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>div</title>
	<style type="text/css">
    .box{
     background-color: blue;
     color: #fff;
     width: 500px;
     height: 500px;
     padding: 40px 50px 60px 70px;
     margin: 50px;
     border: 10px solid yellow;
    }
    .box1{
    background: green url() 0 0 no-repeat;
    color: red;
    width: 50px;
    height: 30px;
    border: 5px solid pink;
    margin:30px;
    padding: 10px 20px;
    overflow: hidden;
    }
    .box3{
    	background: red;
    	color: green;
    	width: 100px;
    	height: 100px;
    	border: 8px solid black;
    	margin-top: 500px;
    	margin-bottom: 500px;
    	margin-left: 500px;
    	padding: 100px ;
    }
	</style>
</head>
<body>
	<div class="box">1233445</div>
	<div class="box1">99999999999999999999999999999999999999999999999999999999999999999999999</div>
	<div class="box3">123</div>
</body>
</html>